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https://www.readbyqxmd.com/read/28650936/colistin-use-in-neonates-and-children-with-infections-due-to-carbapenem-resistant-bacteria
#1
Charalampos Antachopoulos, Elias Iosifidis
No abstract text is available yet for this article.
June 23, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28650688/multidrug-resistant-enterobacteriaceae-in-lebanese-hospital-wastewater-implication-in-the-one-health-concept
#2
Ziad Daoud, Jina Farah, Elie S Salem, Khalil El Kfoury, Elias Dahdouh, Khalil Masri, Claude Afif, Roula M Abdel-Massih, Ghassan M Matar
Extended-spectrum beta-lactamases (ESBL) and carbapenemase-producing organisms pose severe problems for hospitalized patients. In the absence of efficient sanitation and sewage disposal, the risks for transmission of hospital organisms into the community are high. Our objectives were to study the occurrence and mechanisms of resistance of multidrug-resistant gram-negative bacilli in two Lebanese hospital sewage treatment plants. Wastewater samples were collected, filtered, and cultivated on MacConckey+cefotaxime agars...
June 26, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28649083/report-prevalence-of-hospital-acquired-burkholderia-cepacia-infection-and-its-antimicrobial-susceptibility-in-a-chinese-hospital
#3
Jinju Duan, Jianbang Kang, Ting Han, Yuqin Ma, Qian Guo, Yan Song, Qiang Zhao, Yan Yang, Ruiqin Zhang
This study aimed to investigate antimicrobial susceptibility of hospital acquired Burkholderia cepacia infection in Shanxi (China) during August 2009 and December 2012. To characterize an emerging nocosomial infection. The medical records of 112 patients that were tested positive for B. cepacia were retrospectively analyzed. The K-B disk diffusion method was used to determine the drug susceptibility of the isolated strains. A hundred and fifty strains of B. cepacia were isolated from 112 patients. The sensitivity rates of B...
March 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28648860/global-emergence-of-the-widespread-pseudomonas-aeruginosa-st235-clone
#4
Panisa Treepong, Veronica N Kos, Christophe Guyeux, Dominique S Blanc, Xavier Bertrand, Benoit Valot, Didier Hocquet
OBJECTIVES: Despite the non-clonal epidemic population structure of Pseudomonas aeruginosa, several multi-locus sequence types are distributed worldwide and are frequently associated with epidemics where multidrug resistance confounds treatment. ST235 is the most prevalent of these widespread clones. In this study we aimed to understand the origin of ST235 and the molecular basis for its success. METHODS: The genomes of 79 P. aeruginosa ST235 isolates collected worldwide over a 27-year period were examined...
June 22, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28648181/a-highly-sensitive-carbapenemase-assay-using-laser-desorption-ionization-mass-spectrometry-based-on-a-parylene-matrix-chip
#5
Jong-Min Park, Jo-Il Kim, Joo-Yoon Noh, Mira Kim, Min-Jung Kang, Jae-Chul Pyun
A quantitative carbapenemase assay was developed using laser desorption/ionization mass spectrometry (LDI-MS) based on a parylene-matrix chip. As a first step, the reproducibility (spot-to-spot, shot-to-shot, and day-to-day) of LDI-MS based on a parylene-matrix chip and the quantification ranges for four carbapenem antibiotics (doripenem, ertapenem, imipenem, and meropenem) were determined. A carbapenem-susceptibility test was performed using the four carbapenems and 51 bacterial strains that displayed (1) carbapenem resistance with carbapenemase, (2) carbapenem resistance without carbapenemase, or (3) carbapenem susceptibility...
September 2017: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/28647532/carbapenem-resistant-enterobacteriaceae-in-the-community-a-scoping-review
#6
REVIEW
Ana M Kelly, Barun Mathema, Elaine L Larson
Carbapenem antibiotics are used as a last resort to treat serious Gram-negative bacteria (GNB) infections, however carbapenemase-producing strains of GNB have emerged as a major source of resistance. Owing to the highly transmissible nature of plasmid-borne carbapenemases, numerous reports have warned about the likely spread into the community from healthcare settings. Since the prevalence of carbapenem-resistant Enterobacteriaceae (CRE) in the community is largely unknown, we conducted a scoping review of the literature to assess the percentage of CRE isolates that could be associated with the community...
June 21, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28643488/multidrug-resistance-mechanisms-of-carbapenem-resistant-klebsiella-pneumoniae-strains-isolated-in-chongqing-china
#7
Jinrong Yan, Shuli Pu, Xiaojiong Jia, Xiuyu Xu, Shuangshuang Yang, Jing Shi, Shan Sun, Liping Zhang
BACKGROUND: Carbapenem-resistant Klebsiella pneumoniae (CRKP) is considered a serious global threat. However, little is known regarding the multidrug resistance (MDR) mechanisms of CRKP. This study investigated the phenotypes and MDR mechanisms of CRKP and identified their clonal characteristics. METHODS: PCR and sequencing were utilized to identify antibiotic resistance determinants. Integron gene cassette arrays were determined by restriction fragment length polymorphism (RFLP) analysis...
September 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28643188/impact-of-appropriateness-of-empiric-therapy-on-outcomes-in-community-onset-bacteremia-by-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-and-klebisella-pneumoniae-definitively-treated-with-carbapenems
#8
E-J Joo, D A Park, N R Lee, S-Y Moon, J-K Choi, J-H Ko, K R Peck
Despite a significant increase of bloodstream infection caused by extended-spectrum-β-lactamase (ESBL)-producing Enterobacteriaceae in the community-setting, information regarding clinical outcomes of inappropriate empiric therapy (IAT) in patients with those infections is limited. A multicenter-retrospective cohort study was conducted in four hospitals. A total of 249 adults were identified to have community-onset bacteremia caused by ESBL-producing Escherichia coli and Klebsiella pneumoniae, and definitively treated with carbapenems...
June 23, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28642846/decreased-fitness-and-virulence-in-st10-escherichia-coli-harboring-blandm-5-and-mcr-1-against-a-st4981-strain-with-blandm-5
#9
Yawei Zhang, Kang Liao, Hua Gao, Qi Wang, Xiaojuan Wang, Henan Li, Ruobing Wang, Hui Wang
Although coexistence of blaNDM-5 and mcr-1 in Escherichia coli has been reported, little is known about the fitness and virulence of such strains. Three carbapenem-resistant Escherichia coli (GZ1, GZ2, and GZ3) successively isolated from one patient in 2015 were investigated for microbiological fitness and virulence. GZ1 and GZ2 were also resistant to colistin. To verify the association between plasmids and fitness, growth kinetics of the transconjugants were performed. We also analyzed genomic sequences of GZ2 and GZ3 using PacBio sequencing...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28642140/emergence-of-carbapenem-resistant-enterobacteriaceae-isolated-from-patients-in-a-university-hospital-in-saudi-arabia-epidemiology-clinical-profiles-and-outcomes
#10
Fawzia E Alotaibi, Elham E Bukhari, Maha M Al-Mohizea, Taghreed Hafiz, Eman Bin Essa, Yasmeen I AlTokhais
Carbapenemase-producing Enterobacteriaceae have been steadily spreading worldwide during the last decade. Nine patients were identified prospectively and were followed during their hospitalization course to identify the epidemiology, clinical profiles and outcomes. These patients had one or more cultures positive for a CRE isolate, contributing to a total of eleven positive cultures from various sites without including duplicates of isolates obtained from the same site. Isolates from these patients included five Klebseilla pneumoniae, three Escherichia coli, and one Enterobacter aerogenes...
June 19, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28642139/clinical-characteristics-and-epidemiology-of-sepsis-in-the-neonatal-intensive-care-unit-in-the-era-of-multi-drug-resistant-organisms-a-retrospective-review
#11
Dawood Yusef, Tala Shalakhti, Samah Awad, Hana'a Algharaibeh, Wasim Khasawneh
BACKGROUND: Sepsis in the neonatal intensive care unit (NICU) remains one of the most significant causes of morbidity and mortality, especially for preterm newborns. Multi-drug resistant organisms (MDROs) are emerging as important pathogens that cause neonatal sepsis in NICU. Therefore, studying the epidemiology, clinical features, and outcome caused by MDROs vs. non-MDROs, and identifying risk factors that may predispose patients to sepsis by MDROs are important. METHODS: Episodes of blood culture-proven sepsis (age: 0-90 days) in the NICU at our institution from January 2012 to December 2015 were retrospectively reviewed...
June 9, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28639934/first-description-of-methyltransferases-in-extensively-drug-resistant-klebsiella-pneumoniae-isolates-from-saudi-arabia
#12
Baha Abdalhamid, Nasreldin Elhadi, Samar Albunayan, Khaldoon Alsamman, Reem Aljindan
PURPOSE: The resistance determinants for carbapenems, fluoroquinolones and aminoglycosides were characterized in 16 extensively drug-resistant Klebsiella pneumoniae (XDRKPN) strains collected from Saudi hospitals during 2014. METHODOLOGY: PCR and sequencing were used to detect: blaKPC, blaNDM, blaVIM, blaIMP-1,blaOXA-48, blaCTX-M, blaTEM, blaSHV and ampC for β-lactam resistance; qnrA, qnrB, qnrS, aac(6')-Ib-cr, qepA and mutations of gyrA and parC for fluoroquinolone resistance; and aacA4, aacC2, aadA1, aphA6, armA and rmtB for aminoglycoside resistance...
June 22, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28639245/biofilm-forming-ability-and-clonality-in-acinetobacter-baumannii-strains-isolated-from-urine-samples-and-urinary-catheters-in-different-european-hospitals
#13
Claudia Vuotto, Filipa Grosso, Francesca Longo, Maria Pia Balice, Mariana Carvalho de Barros, Luisa Peixe, Gianfranco Donelli
OBJECTIVE: Biofilm formation has been associated with the persistence of Acinetobacter baumannii in hospital settings and its propensity to cause infection. We investigated the adhesion ability and clonality of 128 A. baumannii isolates recovered from urine and urinary catheters of patients admitted to 5 European hospitals during 1991-2013. METHODS: Isolates identification was confirmed by rpoB sequencing and by the presence of blaOXA-51. The presence of carbapenemases was detected by PCR...
June 22, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28639165/molecular-characterization-of-intestinal-carriage-of-carbapenem-resistant-enterobacteriaceae-among-inpatients-at-two-iranian-university-hospitals-first-report-of-co-production-of-bla-ndm-7-and-bla-oxa-48
#14
H Solgi, F Badmasti, Z Aminzadeh, C G Giske, M Pourahmad, F Vaziri, S A Havaei, F Shahcheraghi
Gastrointestinal colonization of carbapenem-resistant Enterobacteriaceae (CRE) could serve as a reservoir for the transmission of these pathogens in the clinical setting. The aim of this study was to investigate the intestinal carriage of CRE and to analyze risk factors for CRE carriage. Rectal swabs were collected from 95 patients at two Iranian university hospitals. CRE screening was performed using selective media (CHROMagar and MacConkey agar). Polymerase chain reaction (PCR) was used to detect carbapenemase-encoding genes...
June 21, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28639164/lipid-peroxidation-in-gram-negative-bacteremia-modulates-the-risk-for-septic-shock-and-infections-by-resistant-klebsiella-pneumoniae
#15
S Christodoulou, E Kyriazopoulou, M Chrysanthakopoulou, G Karlis, I Karampela, K Gkizeli, N Veliki, A Safarika, E J Giamarellos-Bourboulis, G Adamis
Controversies in outcomes with the parenteral administration of antioxidants as adjuvant therapies led to the measurement of malondialdehyde (MDA), a product of lipid peroxidation, in serum collected from 120 patients with primary Gram-negative bacteremia during the first 24 h from sepsis onset. MDA was measured by the thiobarbiturate assay, followed by high-performance liquid chromatography (HPLC) analysis. After receiver operator characteristic (ROC) curve analysis, patients were divided into those with high levels of MDA and low levels of MDA...
June 21, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28638412/molecular-identification-of-aminoglycoside-modifying-enzymes-and-plasmid-mediated-quinolone-resistance-genes-among-klebsiella-pneumoniae-clinical-isolates-recovered-from-egyptian-patients
#16
Mohamed F El-Badawy, Wael M Tawakol, Shaymaa W El-Far, Ibrahim A Maghrabi, Saleh A Al-Ghamdi, Moselhy S Mansy, Mohammed S Ashour, Mohamed M Shohayeb
Inappropriate use of antibiotics in clinical settings is thought to have led to the global emergence and spread of multidrug-resistant pathogens. The goal of this study was to investigate the prevalence of genes encoding aminoglycoside resistance and plasmid-mediated quinolone resistance among clinical isolates of Klebsiella pneumoniae. All K. pneumoniae isolates were phenotypically identified using API 20E and then confirmed genotypically through amplification of the specific K. pneumoniae phoE gene. All isolates were genotyped by the enterobacterial repetitive intergenic consensus polymerase chain reaction technique (ERIC-PCR)...
2017: International Journal of Microbiology
https://www.readbyqxmd.com/read/28637307/sparing-carbapenem-usage
#17
A Peter R Wilson
Background: Carbapenem resistance in Gram-negative bacteria is increasing in many countries and use of carbapenems and antibiotics to which resistance is linked should be reduced to slow its emergence. There are no directly equivalent antibiotics and the alternatives are less well supported by clinical trials. The few new agents are expensive. Objectives: To provide guidance on strategies to reduce carbapenem usage. Methods: A literature review was performed as described in the BSAC/HIS/BIA/IPS Joint Working Party on Multiresistant Gram-negative Infection Report...
June 15, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28637265/importance-of-carbapenemase-production-detection-in-carbapenem-resistant-enterobacteriaceae-looking-beyond-epidemiological-purposes
#18
Adriana Jimenez, Lilian Abbo, Merhawi T Gebrezgi
No abstract text is available yet for this article.
June 16, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28636666/molecular-and-microbiological-report-of-a-hospital-outbreak-of-ndm-1-carrying-enterobacteriaceae-in-mexico
#19
Paola Bocanegra-Ibarias, Elvira Garza-González, Rayo Morfín-Otero, Humberto Barrios, Licet Villarreal-Treviño, Eduardo Rodríguez-Noriega, Ulises Garza-Ramos, Santiago Petersen-Morfin, Jesus Silva-Sanchez
OBJECTIVES: To characterize the microbiological, molecular and epidemiological data of an outbreak of carbapenem-resistant Enterobacteriaceae (CRE) in a tertiary-care hospital in Mexico. METHODS: From September 2014 to July 2015, all CRE clinical isolates recovered during an outbreak in the Hospital Civil "Fray Antonio Alcalde" in Jalisco, Mexico were screened for antimicrobial susceptibility, carbapenemase production, carbapenemase-encoding genes, and plasmid profiles...
2017: PloS One
https://www.readbyqxmd.com/read/28630686/fecal-carriage-of-extended-spectrum-%C3%AE-lactamase-and-carbapenemase-producing-enterobacteriaceae-in-egyptian-patients-with-community-onset-gastrointestinal-complaints-a-hospital-based-cross-sectional-study
#20
H M Abdallah, N Alnaiemi, E A Reuland, B B Wintermans, A Koek, A M Abdelwahab, A Samy, K W Abdelsalam, C M J E Vandenbroucke-Grauls
OBJECTIVES: The aim of this study was to determine the prevalence of extended-spectrum β-lactamase (ESBL) and carbapenemase production among Enterobacteriaceae isolated from ambulatory patients with gastrointestinal complaints admitted to El-Ahrar General Hospital, Zagazig, Egypt in the period between January 2013 and May 2013. METHODS: One hundred and thirteen Enterobacteriaceae isolates were recovered from 100 consecutive Egyptian patients with community-onset gastrointestinal complaints...
2017: Antimicrobial Resistance and Infection Control
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